What if the Mutate Target is Destroyed
If your deck contains a lot of these, you likely want a few more pure lands to compensate
Another noteworthy difference is that cards included in the Beta preconstructed decks are different and contain far fewer elites and uniques (but still representing an amazing value for the MSRP sticker price!)
In addition to the classic cantrips Id strongly recommend including more powerful and expensive card draw like Dig Through Time, Pull from Tomorrow, and Drown in Dreams
Aggro-Control / Tempo - Disrupt the opponent with quick control cards, while chipping away life with cheap aggro
For example, if you control ten permanents, lose control of one, then cast Golden Demise, you wont have the citys blessing and the spell will affect creatures you control